Dan Wei

Beijing Academy of Agricultural and Forestry Sciences

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Jin Liang

Anhui Agricultural University

Baoku Zhou

Heilongjiang Provincial Academy of Agricultural Sciences

Fengqin Chi

Ministry of Agriculture and Rural Affairs

Jiuming Zhang

Ministry of Agriculture and Rural Affairs

Ping He

Institute of Agricultural Resources and Regional Planning

Zimin Wei

Liaocheng University

Xinpeng Xu

Institute of Agricultural Resources and Regional Planning

Yue Zhao

Northwest Institute of Eco-Environment and Resources

Shaojun Qiu

Institute of Agricultural Resources and Regional Planning

Zhizhuang An

Beijing Academy of Agricultural and Forestry Sciences

Cooperative Institutions

Chinese Academy of Sciences

Ministry of Agriculture and Rural Affairs

China Agricultural University

Chinese Academy of Agricultural Sciences

Northeast Agricultural University

Beijing Academy of Agricultural and Forestry Sciences

University of Chinese Academy of Sciences

Institute of Agricultural Resources and Regional Planning

Heilongjiang Provincial Academy of Agricultural Sciences

Huazhong Agricultural University

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[Fluorescence spectroscopic characteristics of fulvic acid from the long-term located fertilization in black soil].

PubMed (2011)

Yanping Li Dan Wei Baoku Zhou Yue Zhao Xilin Zhang

In order to investigate the effect of long-term located fertilization on soil fulvic acid (FA), in this study, four soil samples were taken from black soil with long-term located fertilization (about 30 year) in Harbin, Heilongjiang province. The fertilization treatments included control (CK), N, P and K fertilization (NPK), horse manure (OM), combination of organic manure and chemical fertilizations (MNPK). Soil FA was extracted from the samples and purified. The excitation, emission, synchronous, and three-dimensional-excitation emission matrix fluorescence spectroscopy (3DEEM) characteristics of the FA were determined. The excitation, emission and synchronous scan spectra all indicated that the main peaks of FA in the NPK treatment exhibited a significantly blue shift compared with CK, while those of MNPK, OM treatment caused a red shift to some extent. 3DEEM spectra of FA in all treatments exhibited four peaks (peak a, peak b, peak c, and peak d), compared with FA in CK, the wavelengths shift tendency of peak a, peak b, and peak c of FA 3DEEM in NPK, MNPK and OM treatments were similar to that of traditional spectra in FA. In order to provide quantitative information of FA humification degree in different treatments, we investigated the fluorescence index f450/500 (FI), area integration (A370-600 nm, A1 370-412 nm, A4 538-600 nm). Compared with CK, the f450/500, ratio of A1/A in NPK and A4/A in MNPK treatment increased by 4.62%, 6.12%, 7.22%, respectively. However, the f450/500, the ratio of A1/A in MNPK and A4/A in NPK treatment decreased by 3.86%, 15.31%, and 7.22% respectively. This indicated that NPK application gave a lower degree of FA humification, and combination of organic manure and chemical fertilizations would lead to a greater degree of FA aromatization in black soil with long-term located fertilization than CK.

Humus

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Citations (5)

Effect of sewage sludge and its compost on the edephic grochemic characters

Dongbei Nongye Daxue xuebao (2009)

Dan Wei

The application of municipal sewage sludge and its compost on soil caused the decreasing of hydrolyzing acid content and the increasing of base saturation degree in the soil. The contents of soil available phosphorus in the soil applied by sewage sludge and its compost were increased 2.9-7.9 times and 3.1-6.5 times,respectively. On aftereffects,hydrolyzing acid declined with the increasing of organic fertilizers. After the application of sewage sludge and its compost,the base saturation degree of soil declined by 21% -33% and 12% -13% respectively,the content of rapidly available phosphorus in soil increased by 10%-26% and 16%-32%,respectively.

Sewage sludge

Saturation (graph theory)

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Enhancing maize yield through understanding the novel shoot-root interaction in morphology among hybrids with dense planting

Field Crops Research (2023)

Yupeng Zhu Su Wang Yunhao Li Dan Wei Ning Luo

Morphology

Root system

10.1016/j.fcr.2023.109107

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Citations (4)

Long-term manure addition reduces diversity and changes community structure of diazotrophs in a neutral black soil of northeast China

Journal of Soils and Sediments (2018)

Xiaojing Hu Junjie Liu Ping Zhu Dan Wei Jian Jin

Monoculture

10.1007/s11368-018-1975-6

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Citations (48)

Estimating nutrient uptake requirements for soybean using QUEFTS model in China

PLoS ONE (2017)

Fuqiang Yang Xinpeng Xu Wei Wang Jinchuan Ma Dan Wei

Estimating balanced nutrient requirements for soybean (Glycine max [L.] Merr) in China is essential for identifying optimal fertilizer application regimes to increase soybean yield and nutrient use efficiency. We collected datasets from field experiments in major soybean planting regions of China between 2001 and 2015 to assess the relationship between soybean seed yield and nutrient uptake, and to estimate nitrogen (N), phosphorus (P), and potassium (K) requirements for a target yield of soybean using the quantitative evaluation of the fertility of tropical soils (QUEFTS) model. The QUEFTS model predicted a linear-parabolic-plateau curve for the balanced nutrient uptake with a target yield increased from 3.0 to 6.0 t ha-1 and the linear part was continuing until the yield reached about 60-70% of the potential yield. To produce 1000 kg seed of soybean in China, 55.4 kg N, 7.9 kg P, and 20.1 kg K (N:P:K = 7:1:2.5) were required in the above-ground parts, and the corresponding internal efficiencies (IE, kg seed yield per kg nutrient uptake) were 18.1, 126.6, and 49.8 kg seed per kg N, P, and K, respectively. The QUEFTS model also simulated that a balanced N, P, and K removal by seed which were 48.3, 5.9, and 12.2 kg per 1000 kg seed, respectively, accounting for 87.1%, 74.1%, and 60.8% of the total above-ground parts, respectively. These results were conducive to make fertilizer recommendations that improve the seed yield of soybean and avoid excessive or deficient nutrient supplies. Field validation indicated that the QUEFTS model could be used to estimate nutrient requirements which help develop fertilizer recommendations for soybean.

Potash

Nutrient Management

10.1371/journal.pone.0177509

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Citations (35)

Speciation distribution of soil inorganic sulfur in three black soil areas of Northeast China

CHINESE JOURNAL OF ECO-AGRICULTURE (2011)

Fengqin Chi Jingkuan Wang Yulong Zhang Dan Wei Baoku Zhou

采用田间取样、室内分步浸提的方法, 系统研究了我国东北3 个典型黑土地区土壤无机硫的含量分布和形态特征。结果表明: 耕层(0~20 cm)黑土中无机硫含量占全硫的百分比为22%, 其中水溶性硫占6%, 吸附性硫占3%, 盐酸可溶性硫占13%。水溶性硫和吸附性硫含量表现为海伦>北安>公主岭, 盐酸可溶性硫含量为公主岭>海伦>北安。水溶性硫、吸附性硫含量随剖面的加深变化不大, 盐酸可溶性硫在115 cm 深度以下有一个积累的过程。土壤水溶性硫、吸附性硫与土壤有机质含量、阳离子交换量和<0.002 mm 黏粒含量呈显著或极显著正相关, 与pH 呈显著和极显著负相关; 盐酸可溶性硫含量和土壤电导率之间呈显著正相关。海伦地区黑土无机硫总量和盐酸可溶性硫含量随开垦年限增加明显下降, 呈显著负相关。

Genetic algorithm

10.3724/sp.j.1011.2011.00511

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Citations (1)

Assessment of the optimum fertilizer rates and planting density for soybean production in China

bioRxiv (Cold Spring Harbor Laboratory) (2019)

Jilong Lv Ping He Dan Wei Xinpeng Xu Shaojun Qiu

Abstract Fertilization rate and planting density are important factors affecting crop yield. A large number of soybean [ Glycine max (L.) Merr] field experimental data (1998-2017) were collected through different database sources to evaluate the optimum fertilizer rate and planting density for high yield of spring and summer soybean in China. The yield of spring and summer soybean gradually increased over year, with their average yields were 2610 and 2724 kg ha −1 , respectively. Based on the fitted quadratic curve, the optimal rate of nitrogen (N), phosphorus (P), and potassium (K) fertilizers for high yield of summer soybean was 96 kg N ha −1 , 80 kg P 2 O 5 ha −1 , and 126 kg K 2 O ha −1 , and the corresponding yields were 3038, 2801 and 2305 kg ha −1 , respectively. The optimal rate of N, P and K fertilizers for spring soybean was 71 kg N ha -1 , 108 kg P 2 O 5 ha -1 and 74 kg K 2 O ha −1 , and the corresponding yields were 2932, 2834 and 2678 kg ha −1 , respectively. The optimum density was 27×10 4 and 34×10 4 plants ha −1 under high yield for summer and spring soybean, respectively. Stepwise regression analysis showed that the P fertilizer had the greatest influence on the spring soybean yield followed by K fertilizer and planting density. For summer soybean, population density had the major effect on yield followed by P fertilizer. Overall, the P fertilization and planting density should be payed attention to increase soybean yield in different regions of China.

10.1101/688986

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Citations (1)

Variability of Soil Erosion under Different Topographical and Vegetation Conditions in Upper Min River Watershed

Applied Mechanics and Materials (2012)

Zhi Yong Liu Xin Zhang Ping Zhou Dan Wei

Soil erosion by water is affected by soil factor, rainfall erosivity, geographical factors, vegetation cover factor, and support practice factors. On the basis of quantitative estimation of soil erosion in the Upper Min River (UMR) watershed (located in the Upper Yangtze River basin, Sichuan, China) by applying the Revised Soil Loss Equation (RUSLE) model, Geographical Information System (GIS) software, and Remote Sensing (RS) technology, we explored the effects of topography and vegetation on soil loss for better erosion control measures, and analyzed ecological restoration approaches for the high soil erosion areas of this mountainous watershed. Totally 625 field plots were sampled for visually verifying soil erosion classification. Zonal statistics in ArcGIS software were used to assess the values of soil loss under different topographic and vegetation gradients. The results showed 58.1% of this watershed suffering moderate, high or extremely high erosion. The average soil erosion values substantially increased as the slope ranges rising. On the slopes of 7 categories (50 degrees), the percent of moderate, high and extreme risks accounted for 12.07%, 21.03%, 36.43%, 62.83%, 82.51%, 91.04%, and 94.02% respectively. The values of soil loss on sunny slopes were higher than those on shady slopes. The mean value was the greatest on the west-facing slope. On each similar slope, vegetation types showed different patterns to soil loss, and higher vegetation cover prevented more soil loss from erosion. In order to alleviate soil loss hazards, conservation measures to change micro-topography including terraces and contour tillage could be implemented in the watershed, and ecological restoration could be effective measure for controlling soil erosion in this degraded mountainous watershed.

Dryland salinity

10.4028/www.scientific.net/amm.260-261.796

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Distribution of type VI secretion system (T6SS) in clinical Klebsiella pneumoniae strains from a Chinese hospital and its potential relationship with virulence and drug resistance

Microbial Pathogenesis (2021)

Wenjian Liao Haihua Huang Qi-Sen Huang DU Fang-ling Dan Wei

Multilocus sequence typing

Klebsiella

10.1016/j.micpath.2021.105085

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Citations (14)